Portable device for the quality control of products
a technology of quality control and products, applied in the field of quality control of vegetal products, can solve the problems of fixed installations of the type mentioned, high cost and poor versatility, and restricting us
Inactive Publication Date: 2009-01-29
SACMI COOP MECCANICI IMOLA S C R L
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Problems solved by technology
The fixed installations of the type mentioned above, besides a high cost and the poor versatility, exhibit some disadvantages that restrict the use thereof.
They comprise lighting devices of sensible power, in the range of 2000 W, which are necessary for making the measurement as little as possible influenced by the ambient lighting, but they create problems of undesired product heating in the case of stoppage of the conveyer chain of the same.
Moreover, the conveyer links are designed for an average product size, and are not much suitable for the control of products whose size considerably differs from the average; to this end, we may consider kiwis and melons.
Also the known portable devices, however, have proven partly unsatisfactory, since the intermittent actuation of the lighting means does not guarantee that they are always at steady state when the measurements are made; moreover, the poor lighting power makes the device very sensitive to the influence of the ambient lighting.
Last but not least, the concentration of lighting in limited product zones makes the device unsuitable for controlling fruits of a size larger than the average and with a hard skin.
Method used
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[0025]In the figures from FIG. 2 to FIG. 4, it can be seen that the finding comprises a bottom plate 1 and a top plate 2 connected by four posts 3 with adjustable length.
[0026]In particular, each post comprises a portion 31 fixed to plate 1 on which a portion 32 turnable and coupled to plate 2 is screwed.
[0027]On portion 32 there is arranged a toothed pulley 33, and pulleys 33 of each post are connected by a toothed belt 34, so as to rotate by identical amounts for allowing the adjustment of the distance between plates 1 and 2 keeping them strictly parallel to each other.
[0028]Plate 2 comprises a hole 21 of a diameter equal to that of an underlying crown 4 of lighting means.
[0029]In the example shown, crown 4 consists of nine lamps 41 supported by a truncated-cone sheet bell 42 so as to be converging upwards with an angle of about 45° relative to the vertical.
[0030]Bell 42 is supported by a hollow central body 43 whose top truncated-cone surface 430 is inclined by 450 relative to th...
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A portable device for the quality control of vegetal products comprising a power supply (7) intended for powering a circular crown of lighting lamps (41) at the centre of which there is arranged the receiving objective of a spectrometer (45) provided with means (431) adapted for resting on the product to be checked, said spectrometer (45) being associated to a microprocessor (11) which provides the measurement data on display means (12); according to the invention, the lamps (41) are permanently powered, and in stand-by, at a reduced voltage (70), lower than the nominal voltage (71) delivered by the power supply (7), and instantaneously at the nominal voltage (71 supplied by the power supply (7) through a power circuit (8) whose activation is commanded and controlled by the microprocessor (11) in response to an activation signal generated by a button (10).
Description
TECHNICAL FIELD[0001]The present patent relates to the technical field of the quality control of vegetal products in particular, such as fruit and vegetables, and of other products with similar features.[0002]In particular, the present invention relates to the quality control by spectroscopic analysis of the product.BACKGROUND ART[0003]Devices have been setup, which substantially comprise a chain conveyer whose links consist of bowls, each adapted for receiving a fruit, associated to spectroscopic analysis means.[0004]According to the prior art, the spectroscopic analysis means comprises means for lighting the fruit and means for gathering the light refracted by the fruit and for the spectroscopic analysis of the same.[0005]The chain moves with a continuous motion in front of said lighting means and the light gathering and spectroscopic analysis means is arranged so that upon the passage of the fruit, at least a portion of the light crossing the fruit is gathered and sent to a spect...
Claims
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Login to View More IPC IPC(8): G01N21/25
CPCG01N21/255G01N2201/0636G01N33/025G01N2021/8466G01N2201/0221G01N2201/0224G01N2201/0618G01N2201/0692G01N2201/0694G01N2201/0696G01N21/474G01N2021/4757G01N2021/4759G01N2021/4761G01N33/02
InventorZAULI, BRUNOREMONDINI, MARCOBOSI, GILDO
OwnerSACMI COOP MECCANICI IMOLA S C R L